中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
STUDY OF OKINAWA TROUGH SEDIMENTATION RATES AND PALEOENVIRONMENT BASED ON URANIUM SERIES ISOTOPE

文献类型:CNKI期刊论文

作者李凤业,史玉兰
发表日期1996-11-15
出处Chinese Journal of Oceanology and Limnology
关键词uranium series isotope Okinawa Trough sedimentation rates
英文摘要<正> Spectrometry of ~(238)U, ~(234)U, ~(230)Th and, ~(232)Th in three Okinawa Trough cores showed that, based on the~(230)Th/~(232)Th activity ratio, the sedimentation rates were about 2.5 cm/ka, 2.8 cm/ka and 8.5 cm/ka respectivelyduring the Holocene and about 20.1 cm/ka, 12.29 cm/ka, 8.8 cm/ka and 12.6 cm/ka respectively during theWurm glacial. To examine the past global climatic and oceanographic changes, the stable oxygen isotopesδ~(18)O and CaCO_3 were measured. The Th content and Th/U ratio showed that variations of terrigenous materialinput from the continental shelf were associated with glacial and interglacial changes and sea level
文献子类CNKI期刊论文
资助机构Contribution No. 2911 from Institute of Oceanology, Chinese Academy of Sciences. This research was supported by the National Natural Science Foundation of China.
04页:85-89
语种英文;
分类号P736
ISSN号0254-4059
源URL[http://ir.qdio.ac.cn/handle/337002/195239]  
专题中国科学院海洋研究所
作者单位InstituteofOceanology,chineseAcademyofSciences,Qingdao266071 ,InstituteofOceanology,chineseAcademyofSciences,Qingdao266071
推荐引用方式
GB/T 7714
李凤业,史玉兰. STUDY OF OKINAWA TROUGH SEDIMENTATION RATES AND PALEOENVIRONMENT BASED ON URANIUM SERIES ISOTOPE. 1996.

入库方式: OAI收割

来源:海洋研究所

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